The Turkish education system has approximately 62,000 schools educating 17.2 million students. It has two main parts: formal education and non-formal education. Formal education includes pre-primary, primary, lower secondary, upper secondary, and higher education. Primary education is for ages 6-11 and is compulsory, as is lower secondary from ages 11-14. Secondary education includes both compulsory and optional high school programs. Higher education consists of 173 universities where students apply based on exam scores. The goal at all levels is to provide students with skills and knowledge to be productive citizens.